not know chalk from cheese

辨不清黑白

属类：简明汉英词典--

know how to use one’s tongue;be a good talker

便言

属类：汉英词对--

So that all may know

俾得周知

属类：习语名句-汉英成语-

know each other very well

彼此很熟识

属类：简明汉英词典--

know one’s part

背熟台词

属类：简明汉英词典--

to learn completely;to know the whole story

备悉

属类：简明汉英词典--

My good friends know me well

鲍子知我

属类：习语名句-汉英成语-

undisclosed know-how

保密技术

属类：经济金融-商务术语-

To know or understand little

半通不通

属类：习语名句-汉英成语-

a highly knowledgeable person;know-all;an expert in everything

百事通

属类：简明汉英词典--

They assume most who they know

傲慢者必无知

属类：习语名句-汉英成语-

Know someone by heart;know someone personally

暗记着

属类：学习英语-词组-

need-to-know

按需知密

属类：IT行业-计算机-

know how to swim

谙水性

属类：汉英词对--

How can you know it is not blessing

安知非福

属类：习语名句-汉英成语-

to be law-abiding;to know one’s place

安分

属类：简明汉英词典--

not know beans(about)

(对...)什么也不知道

属类：简明英汉词典--美国俚语

Be familiar to;Be familiar with;seem to know

被某人熟悉

属类：学习英语-词组-

know much about

不大懂

属类：汉英词对--

not know chalk from cheese

不辨黑白

属类：简明汉英词典--

not know how to swim

不谙水性

属类：汉英词对--

Learn not and know not

不学无术

属类：习语名句-汉英成语-

Don’t claim to know what you don’t know

不要不懂装懂

属类：习语名句-谚语-

To know the world as little

不谙世故

属类：习语名句-汉英成语-

To know this from that

辩得清楚

属类：习语名句-汉英成语-

Business know-how

办事能力

属类：综合句库--

know something about everything;have wide but not expert knowledge

博而不精

属类：简明汉英词典--

do not know the way

不得其法

属类：简明汉英词典--

not to know the right way

不得其法

属类：简明汉英词典--

not know the ways of the world

不懂人情世故

属类：简明汉英词典--